Good Day! I would suggest you get a urinalysis
to rule out urine and kidney infection
. Based on what you described, I think you may have musculo-skeletal pain. It could be related to the spine or nerve impingement that is also felt on the legs. Kidney related back pain
is not usually aggravated or related to movement. I would suggest an MRI of the back the check the status of your spinal cord
and nerve endings. Thank you.